Temporary binder.



rm 0 7| 2 E N W m j mN.. m P 4. am .E, MDV@ Smm mi Un D DAP IBN RDOLm LMM EN P P A a a m: ww fz. ,mmm 3, im om QN ifm O M1 UNTTnn STATns Patented June 2'?, 1905.

FaTiaNT @Tricia TEMPORARY BiNDER.

SPEGEFCTION forming part of Letters Patent No. 793,356, datedfune 2'7g 1905.

Application led August 5, 1904. Serial No. 219,672.

To all wiz/0771, t may concern:

Be it known that 1, LEONARD ROY DienaasoN, a citizen of the United States. residing at Chicago, in the county of *Cook and State of iiiinois, have invented certain new and useful improvements in Temporary Binders, of which the following is a specification.

@ne of the objects of this invention is the production of an improved locking device for temporary binders.

A further object of the invention is the general improvement of such binders.

The locking device herein shown and described is partieulariy applicabie to temporary binders consisting of two clamping members or covers,. one of which is slidable upon rods or posts carried by the other clamping member or cover.

1n the accompanying drawings, Figure 1 is a transverse sectionai view through a temporary binder embodying the features of my invention. Fig. 2 is a sectional view on dotted line2 2 of Fig. 1. Fig. 3 is a section on dotted line 3 3 of Fig. 2. Fig. 4 is a fragmental sectional view illustrating a modified construction of the locking means.

In `the drawings, 1 and 2 refer to the clamping side members, to which are iexibly attached the covers 8, said `side members consisting of tubes having fiat sides, rounded edges, and closed ends. To the side member 1 are rigidly secured binder-posts 4 of any suitable construction. As herein shown, these posts consist of short sections screwed together end to end. The fixed end 5 of the first section of each post is reduced in diameter and extends through the sides of the tu-` bular side member 1 and through a metal block 6, lying in said side member, the outer end of said reduced portion being riveted down upon the side member to secure said post-section rigidly in place.

The binder-posts 4 extend through suitable openings 7 in the clamping side member2. The mechanism for locking the side member 2 in position upon the binder-posts 4 is located within said side member and comprises a longitudinal shaft 8, provided at its ends with right and left hand screw-threads. Upon the screw-threads of said shaft are movably mounted cam-blocks 9, each of which camblocks comprises a pcrforatedear 10 internally screw-threaded to engage the threads of the shaft 8, a wedging cam portion 11, and a rib 12, adapted to slide in contact with the inner edge Wall of the tubular side member 2.

Near each of the binder-posts 4 a pin 13, riveted or otherwise suitably secured in the fiat sides of the side member 2, serves as a pivot for a locking-dog 14. This locking-- dog, which is pivoted at or near its longitudinal center, is notched in one end, as at 15, to engage the adjacent binder-post 4', its other end, 16, being wedging for engagement by the wedging portion 11 of the cam-block 9 on the adjacent end of the shaft 8. A leaf-spring 17, fixed at one end to the notched end of the dog 14, and at its other end bearing upon one of the inner edge walls of the side member 2, tends to hold the notched end of the dog out of engagement with the binder-post 4.

One end of the shaft 8 is squared, as at 18, to receive a socket-key (not shown) for rotating the shaft, an opening 19 being formed in the adjacent end wall of the side member 2 for the insertion of said key.

In use leaves or sheets suitably perforated or slitted are placed upon the binder-posts 4 and the side member 2 slid down upon said posts into contact with said sheets. The side member 2 is locked in this position by rotating the shaft 8 in the proper direction to cause the cam-blocks 9 to move toward each other. Such movement of the cam-blocks brings the wedging portions 11 of the blociis into engagement with the wedging ends 16 of the locking-dogs 14, rocking said dogs upon their pivots 13 and bringing the notched ends of the dogs into frictional engagement with the binder-posts 4. When itis desired to move the side member 2 in order tomake changes in the contents of the binder, the shaft 8 is rotated to move the cam-blocks 9 out of engagement with the llockin,;;dogs 14, whereupon the leaf-springs 17 withdraw the notched ends of said dogsjrom engagement with the binder-posts 4. This Withdrawal of the Vlocking-dogs is especially advantageous in that the openings 7 in the side member 2 are thus entirely unobstructed when it is de- IBO sired to piace the side member upon the binderposts e, said dogs lying at one side or said openings out of the way of said posts.

in i i have illustrated a slight modiiication of the iocliing mechanism, in which a notched locking-dog 2O is pivoted at one .end and is moved into engagement with the binder-post 2i by means of a wedging-bloclr 22, having' a screw-thread engagement withv the shaft 23. A leaf-spring 24 tends to move the dog 2O away from the binder-post 21, as

iications may be made in the construction herein described without departing from the spirit and scope of my invention, wherefore l desire to have it understood that i do not iimit myself to the particular construction herein shown and described.

il ciaim as my inventionW l. in a temporary binder, in combination, a

. binder-post; a side member slidably mounted upon said post; a pivoted locking-dog adapted to engage said post; a slidabiy-mounted cam-block adapted to exert a wedging action for rocking said dog upon its pivot to move it into engagement with said post; and means operable from one end of said side member for sliding said cam-block. y

2. in a temporary binder, in combination, a binder-post; a side member slidabiy mounted `upon said post; a locking-dog adapted to engage said post; a screw; and a cam-block having a screw-thread engagement with said screw and adapted to move said dog into engagement with said post.

3. in atemporary binder, in combination, a binder-post; a side member slidahiy supported with relation to said post; a pivoted lockingdog having a wedging-surt'ace and a notch adapted to receive said post; a wedging camblock adapted to engage the wedging-surt'ace of said dog to move said dog into engagement with said post; and means for moving said eamblock.

4C, In a temporary binder, in combination, a binder-post; a tubular side member having an opening therein adapted to receive said post; a locking-dog pivoted within said side member and adapted to engage said post; a camblockin said side member adapted to move said dog upon its pivot into engagement with said post; and means in said side member for moving said cam-bioek.

5. in a temporary binder, in combination, a binder-post; a side member slidabiy supported roasts -with said screw for moving said dog into engagement with said post.

6. -in a temporary binder, 1n combination,

two binder-posts; a side member slidabiy supported with relation tosaid posts; lockingdogs movably mounted with relation to said side member andadapted to engage said posts; a shaft provided with right and left hand screw-threads; and means having a screw-- thread connection with said shaft for moving said dogs into engagement with said posts.

7. In a temporary binder, in combination', two binder-posts; a tubular side member provided with openings for receiving said posts; two locking-dogs each pivotally mounted between its ends in said side member, said dogs each having a notch adapted to receive one of said posts; a shaft provided with right and left hand screw-threads at its opposite ends, said shait being rotatabiy'supported within said side member; and a cam-block having a screw-thread engagement with said shaft at each end thereof for pivotally moving said dogs.

8. iin a temporary binder, in combination, a binder-post; a side member slidably mounted upon said post; a locking-dog adapted to 'engage said post; a screw; a cam-block having la screw-thread engagement with said screw and adapted to move said dog into engagement with said post; and a spring for moving said dog out of engagement with said posta 9. iin a temporary binder, in combination, a binder-post; a side member slidably supported with relation to said post; a pivoted looking-dog having a wedging-surface and a notch adapted to receive said post; a wedging camblock adapted to engage the wedging-surface of said dog to move said dog into engagement With'said post; means for moving said cambiock; and a spring for moving said'dog out of engagement with said post.

10. In a temporary binder, in combination, l

a binder-post; a tubular side member having an opening therein adapted to receive said post; a locking-dog pivoted within said side member and adapted to engage said post; a cam in said side member adapted to move said dog upon its pivot into engagement with said post; means for moving said cam; and a spring in said side member adapted to move said dog out of engagement with said post.

1i. In atemporary binder, in combination, two binder-posts; a side member having openings therein adapted to receive said posts; locking-dogs pivotaily mounted with relation to said side member and adapted to engage said posts; cam-blocks' adapted to move said dogs into engagement with said posts; and a shaft having right and iet't hand screw-threads upon its opposite ends, with which screwthreaded portions seid eem-blocks have a screw-thread engagement.

12. A loel; for loose-leaf binders consisting of upper and lower side members; binderpests arising from said lower side member; openings in seid upper side member through which seid posts pass; and means for locking seid side members Comprising a cem, a pivoted locking-dog having n reduced end por tion that engages and is operated by said Cam, a semieireulnr recess in the opposite end of `said dog that conforms in curvature with and engages one of said posts, and a bow-spring for retaining said dog normally out of engagement with its post, said spring engaging said dog at one extremity and the edge of the side member at the other extremity ata point beyond said recess.

LEONARD ROY DCKERSON. Witnesses:

L. L. iNIILLnR, GEORGE L. CHINDAHL. 

